{"paper":{"title":"Damping Wing-Like Features in the Stacked Ly$\\alpha$ Forest: Potential Neutral Hydrogen Islands at $z<6$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Anna-Christina Eilers, Anson D'Aloisio, Benedetta Spina, Bradley Greig, Christopher Cain, Eduardo Ba\\~nados, Emma V. Ryan-Weber, Ewald Puchwein, Fabian Walter, Fahad Nasir, Feige Wang, Frederick B. Davies, Fuyan Bian, George D. Becker, Girish Kulkarni, Huanqing Chen, James S. Bolton, Jinyi Yang, Laura C. Keating, Manuela Bischetti, Martin G. Haehnelt, Molly Wolfson, Prakash Gaikwad, Rebecca L. Davies, Samuel Lai, Sarah E. I. Bosman, Sindhu Satyavolu, Valentina D'Odorico, Xiaohui Fan, Yongda Zhu, YuXiang Qin","submitted_at":"2024-05-20T18:00:01Z","abstract_excerpt":"Recent quasar absorption line observations suggest that reionization may end as late as $z \\approx 5.3$. As a means to search for large neutral hydrogen islands at $z<6$, we revisit long dark gaps in the Ly$\\beta$ forest in VLT/X-Shooter and Keck/ESI quasar spectra. We stack the Ly$\\alpha$ forest corresponding to both edges of these Ly$\\beta$ dark gaps and identify a damping wing-like extended absorption profile. The average redshift of the stacked forest is $z=5.8$. By comparing these observations with reionization simulations, we infer that such a damping wing-like feature can be naturally e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.12275","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2405.12275/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}